REV. O. P. CAMBRIDGE ON NEW BRITISH SPIDERS. 453 
WALCKENAËRA SCABROSA, n. sp. (Pl. 57. no. 38.) 
Male adult, length +; of an inch. 
Cephalothorax short, broad, smooth and shining, apparently without punctures ; caput 
convexly elevated, but to no great extent, the highest elevation being behind the eyes; 
divisional line between eaput and thorax strong, containing a deepish indentation on 
each side towards the hinder part; lateral grooves distinct ; colour dark yellow-brown, 
margins black; posterior indentation strong. Height of clypeus once and a half the 
length of the space between the two central pairs of eyes; it is furnished with very 
short bristly hairs on the lower margin, and projects but very slightly, if at all, beyond 
the perpendicular of the front row of eyes; but no part of it recedes, as in the Zinyphie: 
in fact it is, if any thing, slightly prominent a little below the eyes. 
Eyes eight, in four pairs or two transverse rows; they are small, those of the central 
pair in the hinder row being slightly the largest, the rest nearly of the same size; those 
of the side pairs are seated on a slight tubercle and contiguous to each other; those of the 
central pair (in the front row) are nearly contiguous; those of the two central pairs 
form a square with the fore side shortest ; the space between those of the central pair in 
the hinder row is the same as that between each and the hinder one of the lateral pair on 
its side, and also the same as that between each of the central front pair and the fore one 
of the lateral pair on its side. 
Legs strong, moderate in length ; relative length 4,1, 2,3; furnished with short strong 
hairs; genual joints rather tumid on the upperside. Colour the same as that of the 
cephalothorax. 
Palpi short, moderately strong, rather paler than the legs; ; humeral joints much 
curved towards the falces; cubital joint short, but rather longer and stronger than the 
radial, which is slightly produced in front, and terminates with two small pointed pro- 
jections, the larger of which is rather on the inner side; digital joint very large, with a 
strong lobe on the outer side about the middle; in length it is equal to, if not exceeding, 
all the rest of the palpus. Palpal organs very prominent, highly developed, and compli- 
cated. A circularly curved strong corneous process lies at their hinder extremity close to 
the extremity of the radial joint; and another strong corneous black spine commences 
about the middle of the outer side, and, coiling round the palpal organs, terminates with 
another coil at their extremity. The digital joint is much darker-coloured than the rest; 
and the palpal organs are of a dark red-brown. 
Falces small, straight, and much inclined towards the maxille. The maxille are 
short, strong, and inclined towards the labium. Labium very short, semicircular. These 
last two parts, together with the sternum, which is broad, heart-shaped, and without 
punctures, are rather paler in colour than the legs, and are sparingly clothed with 
hairs. 
Abdomen broad, nearly round, convexly flattened, considerabl ting over the base 
of the cephalothorax; it is black, coriaceous, minutely and thickly dented with small 
punctures, and sparingly clothed with short hairs. After immersion in spirit of wine, 
the cuticle on the upperside assumes a shield-like appearance. 
. This species, which is closely allied to W. depressa (BL), may easily be distinguished 
